MediaWiki:Gadget-CropTool.js

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This user script seems to have a documentation page at MediaWiki:Gadget-CropTool.

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// CropTool code begins, see [[Commons:CropTool]] for details
'use strict';
var title = mw.config.get('wgTitle');
if (mw.config.get('wgNamespaceNumber') === 6 &&
	mw.config.get('wgIsArticle') &&
	/(PNG|GIF|JPE?G|DJVU|PDF|TIF?F|WEBP)$/i.test(title) &&
	document.getElementById('file')) {
	$(function () {
		try {
			title = new mw.Uri('https://croptool.toolforge.org/')
				.extend({
					title: title,
					page: new mw.Uri().query.page,
					site: mw.config.get('wgDBname') !== 'commonswiki' ? mw.config.get('wgServer').replace(/^\/\//, '') : undefined
				});
		} catch ( e ) {
			return;
		}
		mw.util.addPortletLink(
			'p-tb',
			title.toString(),
			'⌗ CropTool',
			't-crop',
			'Crop this image');
	});
}